/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.optimize.info;

import proguard.classfile.*;
import proguard.classfile.util.SimplifiedVisitor;
import proguard.evaluation.value.*;

/**
 * This class stores some optimization information that can be attached to a field.
 *
 * @author Eric Lafortune
 */
public class FieldOptimizationInfo extends SimplifiedVisitor {
    public boolean isKept() {
        return true;
    }

    public boolean isWritten() {
        return true;
    }

    public boolean isRead() {
        return true;
    }

    public boolean canBeMadePrivate() {
        return false;
    }

    public ReferenceValue getReferencedClass() {
        return null;
    }

    public Value getValue() {
        return null;
    }

    public static void setFieldOptimizationInfo(Clazz clazz, Field field) {
        field.setVisitorInfo(new FieldOptimizationInfo());
    }

    public static FieldOptimizationInfo getFieldOptimizationInfo(Field field) {
        return (FieldOptimizationInfo)field.getVisitorInfo();
    }
}
